Top comb for cotton-combers.



F. L. CROCKETT.

TOP COMB FOR COTTON COMBERS. APPLICATION FILED OCT. 6. 19I6- 1,260,876.v Patented Mar.26,1918.

I illlllllllllllllllllllllllllllllill \lllllll -lflllll FRANK L.cnoexnrr, or noarn UXBRIDGE, MASSACHUSETTS, As sreivon 'ro wrrrrrivMACHINE WORKS, 0F WHITINSVILLE, MASSACHUSETTS, A CORPORATION OF MASSA-CHUSETTS.

Specification of Letters Patent.

TOP COMB FOR COTTON-COMBERS.

Patented Mar. 26, 1918.

Application filed October 6, 1916. Serial No. 124,025.

To all whom it may concern:

Be it known that FRANK L, ORocKE'rr, a citizen of the United States,residing in North Uxbridge, Massachusetts, has invented thefollowing-described Improvements in Top Combs for Cotton-Combers.

The new construction improves the facility for adjustment and decreasesthe cost of production of the top comb mechanism of Heilmann typecombers and consists in the special formation of the comb blade and thecombination therewith of means for its attachment to the top comb armsand in other features hereinafter explained and more particularlypointed out in the claim.

In the accompanying drawings:

Figure 1 represents a central vertical section through the top comb inposition in the head of a Heilmann type comber;

Fig. 2 is a top plan with parts broken out;

Fig. 3 a vertical sectionthrough one of the attachment means on lineIII-III of Fig. 2; 7

Fig. 4 is a front elevation of the comb blade disconnected from the armsand angle brackets; and v Fig. 5 a top plan of an angle bracket.

The top comb arms 1 will be understood to be carried on'the usual topcomb shaft 2 and normally supported .by their abutment screws 3 restingon suitable abutments on the frame of the combing machine not shown inthe drawings. The forward ends of the two arms carry the combbladeaholding it normally in a position between thedetaching rolls 5 andthe nipper jaws 6, as indicated in Fig. 1, being in this position closeto the path of the combing cylinder which is represented by the dottedlines 7 and being adapted to be lifted and swung upwardly from thisposition about the axis of the shaft. The function of the top comb inits relation to these various parts requires not only that it be rigidlyand firmly supported in its normal position but that it be set andadjusted with extreme accuracy, as

well understood by those familiar with combing. The top comb blade isformed of a fiatplate, of uniform thickness and can be convenientlystamped out of sheet metal stock;

Along its lower edge it is rabbeted to receive the row of combingneedles 8 soldered in the rabbet groove. Its upper part is cut away atthe central portion (10) forming two upward. arms 11 near each end andthe upper extremities of these arms are bent over forming attachment oradjustment lugs 9, extending rearwardly and at right angles to the upperpart of the blade. The arms and their lugs constitute the means ofattachment of the comb blade to the angle brackets 13 by which they aresecured to the inner faces of the swinging arms 1. Each arm of the combblade 11 is provided with a vertical oblong slot to receive a clamp bolt14 and each lug 9 is provided with an open slot in its rear edge toreceive the groove of an adjustment nut 12. The latter is carried on thethreaded stud 18 rising from the top of the angle bracket and serves toraise and lower the position of the blade on the bracket in obviousmanner. The bolt 14 is tapped into the body of the bracket below thescrew stud 18 and serves to clamp the blade in its adjusted position.There being a bracket of the kind described at each end of the combblade, each is drilled transversely to the clamp bolts 4, to receive thebolt 15 by which the brackets are pivotally mounted on the ends of thearms 1. Each bracket is further formed with a rearward flange 13 havingan arc-shaped slot 16 therein, by means of which the bolts 17 clamp thebracket to the arms 1 and secure the adjustment of the bracket in anyangular position to which it may have been moved about the axes of thebolts 15. T Vhen the blade has been adjusted on the brackets and thelatter on the top comb arms, and the several bolt-s firmly tightened,the comb construction is a rigid unit quite assuitable for practical useas the one piece and much heavier structures heretofore employed. Asabove stated, it is moreover less expensive in cost, and can be producedwith a high degree of accuracy and uniformity. The comb blade may beleft flat if desired, but is preferably bent longitudinally as shown inthe drawings to increase its stiffness and also to aceommo date theangle of the nipper jaws.

Having now described the principle of the invention and the preferredform thereof, What 1s claimed 1s A top comb constructlon for Heihnannand a sheet metal top comb biade adjustably clamped to the forward facesof said bracket pieces type combers comprislng the combination Intestimony whereof, I have signed this 10 5 with the top comb arms of aduStabIe angle specification.

brackets secured at the ends of said arms FRANK LJCROCKETT.

@opies of this patent may be obtained for five cents eaoh by addressingthe --Oommissicner of Patents,

Washington, D. 0.

